# CVE-2026-54745: Server-side request forgery in pipelines

> Unauthenticated attackers can exploit an SSRF vulnerability in the proxy route to access internal cluster services and cloud metadata, bypassing authorization controls.

- **Severity:** Critical 10.0 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 28 Aug 2026
- **Updated:** 31 Aug 2026
- **Also known as:** GHSA-gqww-5pj5-8fq7, MINI-2wq8-ch9c-ffp4

## What is CVE-2026-54745?

CVE-2026-54745 is a critical server-side request forgery vulnerability in kubeflow pipelines, published on 28 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.17.0, the Kubeflow Pipelines frontend exposes an unauthenticated server-side request forgery vulnerability through the /_proxy/ route in frontend/server/proxy-middleware.ts. The _routePathWithReferer() function accepts an arbitrary attacker-controlled HTTP or HTTPS target and passes its origin to createProxyMiddleware without a host allowlist or filtering for loopback, link-local, RFC1918, or cluster-local addresses. The route remains outside the authorization middleware when ENABLE_AUTHZ=true and is reachable through /apis/v1beta1/_proxy/, /apis/v2beta1/_proxy/, /pipeline/apis/v1beta1/_proxy/, and /pipeline/apis/v2beta1/_proxy/, including through a crafted Referer header. Requests can forward attacker-controlled methods, headers such as Authorization, Cookie, and X-Forwarded-For, and POST bodies to reachable internal services, while returning the upstream response to the unauthenticated client. This can expose cloud metadata credentials, Kubernetes or service APIs, and other cluster-internal endpoints to unauthorized read or modification. This issue is fixed in version 2.17.0.

Weakness: CWE-918 (Server-Side Request Forgery), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-54745?


## How do I fix CVE-2026-54745?

Upgrade to a fixed version.

## Is CVE-2026-54745 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54745 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-54745 and fix it if it is affected.

What it is: CVE-2026-54745 is a critical server-side request forgery vulnerability in kubeflow pipelines, published on 28 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54745 exists.

Affected product: kubeflow pipelines. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-54745/ (Markdown: https://insights.sbomify.com/CVE-2026-54745/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-54745
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-54745
- OSV: https://osv.dev/vulnerability/CVE-2026-54745

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-54745/
Summaries are generated and may contain mistakes; the official description above is the record.